Siemens SINUMERIK 802D sl - Page 202

Terms
04.07
B-202
© Siemens AG 2007 All rights reserved
SINUMERIK 802D sl/840D/840D sl/840Di/840Di sl/810D ISO Milling (PGM) -- 04.07 Edition
Programming key Characters and character sequences which have a defined meaning
in the programming language
for --> part programs (see Programming Guide).
Protection zone Three--dimensional area within a --> working area which the tool tip
is not permitted to enter (programmable via MD).
Q
Quadrant error
compensation
Contour errors on quadrant transitions caused by frictional
fluctuations on guideways can be largely eliminated by means of
quadrant error compensation. A circularity test is performed to
parameterize the quadrant error compensation function.
R
R parameter Calculation parameter. The programmer can assign or request the
values of the R parameter in the --> part program as required.
Rail This rail is used to mount the modules of the S7--300 system.
Rapid traverse The highest traversing speed of an axis used, for example, to bring
the tool from an idle position to the --> workpiece
contour or retract it from the workpiece contour.
Reference point Point on the machine tool with which the measuring system of the
--> machine axes is referenced.
Reference point
approach
If the position measuring system used is not an absolute--value
encoder , then a reference point approach operation is required to
ensure that the actual values supplied by the measuring system are
in accordance with the machine coordinate values.